docs: def left_full_join(g, h) -> None:
      """Add all nodes and edges from ``h`` to ``g``, in-place for ``g``.
  
      :param pybel.BELGraph g: A BEL graph
      :param pybel.BELGraph h: A BEL graph
  
      Example usage:
  
      >>> import pybel
      >>> g = pybel.from_path('...')
      >>> h = pybel.from_path('...')
      >>> left_full_join(g, h)
      """
      g.add_nodes_from(
          (node, data)
          for node, data in h.nodes(data=True)
          if node not in g
      )
      g.add_edges_from(
          (u, v, key, data)
          for u, v, key, data in h.edges(keys=True, data=True)
          if u not in g or v not in g[u] or key not in g[u][v]
      )
  
      update_metadata(h, g)
      update_node_helper(h, g)
      g.warnings.extend(h.warnings)